(: Add or to your mana pool.)
When Shelldock Ravine enters the battlefield, sacrifice it unless you pay .
, Sacrifice Shelldock Ravine: Shelldock Ravine deals 1 damage to target creature or player.
: Add 
or 
to your mana pool.)., Sacrifice Shelldock Ravine: Shelldock Ravine deals 1 damage to target creature or player.
